过硫酸盐氧化修复多环芳烃污染土壤的研究

周金倩; 马建立; 商晓甫; 张良运; 李晓光; 林晓泉

doi:10.12153/j.issn.1674-991X.20190148

过硫酸盐氧化修复多环芳烃污染土壤的研究

doi: 10.12153/j.issn.1674-991X.20190148

^1. 天津环科立嘉环境修复科技有限公司
^2. 天津市环境保护科学研究院
^3. 国环危险废物处置工程技术(天津)有限公司

详细信息

作者简介:
周金倩(1987—),女,工程师,硕士,主要从事场地调查、修复及固体废物污染控制与资源化利用技术研究,727754985@qq.com

通讯作者:
马建立 E-mail: majianguang@163.com

中图分类号: X53
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出版历程
- 收稿日期: 2019-08-21
- 刊出日期: 2020-05-20

Persulfate oxidation for remediation of polycyclic aromatic hydrocarbon contaminated soil

^1. Tianjin Huankelijia Environmental Remediation Technology Co., Ltd.
^2. Tianjin Academy of Environmental Sciences
^3. State Environmental Protection Engineering Center (Tianjin) for Hazardous Waste Disposal

More Information

Corresponding author: MA Jianli E-mail: majianguang@163.com

摘要

摘要: 介绍了过硫酸盐氧化作用的活化方法和机理,在此基础上设置了对比试验,分析了氢氧化钠和硫酸亚铁活化过硫酸钠氧化修复多环芳烃污染土壤的效果,探究了pH、硫酸亚铁与过硫酸钠物质的量之比及反应时间对硫酸亚铁/过硫酸钠体系去除多环芳烃的影响,并分析了反应产物的组分。结果表明:硫酸亚铁比氢氧化钠活化过硫酸钠氧化修复多环芳烃污染土壤的效果好;在pH为酸性或中性、硫酸亚铁与过硫酸钠物质的量之比为1∶2.0、反应时间为5 d时,对多环芳烃的去除效果最佳。在控制反应条件的基础上,过渡金属离子活化过硫酸钠是修复多环芳烃污染土壤的可行方法之一。
- 多环芳烃 /
- 过硫酸盐 /
- 活化方法
Abstract: The activation methods and mechanism of persulfate oxidation were introduced. Based on this, comparative experiments were set up to analyze the effects of sodium hydroxide and ferrous sulfate activating sodium persulfate oxidation on the remediation of polycyclic aromatic hydrocarbons (PAHs) contaminated soil. The effects of pH, the ratio of ferrous sulfate to sodium persulfate, and the reaction time on the removal of PAHs by the ferrous sulfate/sodium persulfate system were investigated, and the composition of reaction products was studied. The results showed that compared with sodium hydroxide, ferrous sulfate had a better effect on remediating PAHs contaminated soil by activated sodium persulfate oxidation. When the pH was acidic or neutral, the quantity ratio of ferrous sulfate to sodium persulfate was 1∶2.0, and the reaction time was 5 days, the removal effect of PAHs was the best. Therefore, on the basis of controlling the reaction conditions, the activation of sodium persulfate by transition metal ions was one of the better methods to repair PAHs contaminated soil.
- polycyclic aromatic hydrocarbons /
- persulfate /
- activation methods

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参考文献(18)

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